CN101494330B - Laminated electrical contact strip - Google Patents

Laminated electrical contact strip Download PDF

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Publication number
CN101494330B
CN101494330B CN2009101267216A CN200910126721A CN101494330B CN 101494330 B CN101494330 B CN 101494330B CN 2009101267216 A CN2009101267216 A CN 2009101267216A CN 200910126721 A CN200910126721 A CN 200910126721A CN 101494330 B CN101494330 B CN 101494330B
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China
Prior art keywords
electric contact
electric
flexible member
piece assembly
base portion
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Expired - Fee Related
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CN2009101267216A
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Chinese (zh)
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CN101494330A (en
Inventor
查尔斯·R·马尔斯特罗姆
乔治·J·周
罗伯特·D·希尔蒂
迈克尔·F·劳布
彼得·D·瓦彭斯基
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TE Connectivity Corp
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Tyco Electronics Corp
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Publication of CN101494330A publication Critical patent/CN101494330A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2435—Contacts for co-operating by abutting resilient; resiliently-mounted with opposite contact points, e.g. C beam
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/08—Short-circuiting members for bridging contacts in a counterpart
    • H01R31/085—Short circuiting bus-strips

Abstract

The present invention discloses a electric contact chip assembly (34), which comprises a base (36) provided with a relative first and second base surface (40, 42). a plurality of first elastic elements (52) extend from the first base surface outward, and a plurality of second elastic elements (54) extend from the second base surface outward. A stacking electric contact chip (38) is hold by the base, wherein the stacking electric contact chip comprises a plurality of electric contact points (26) and each electric contact point comprises a couple of relative first and second surface (70, 72) that extend between the pair of relative first and second tail end (74, 76). A first and second insulation layer (66, 68) are stacked on the plurality of electric contact points to make the first and second insulation layer clamp the plurality of electric contact points among them. The first insulation layer (66) is stick onto and covers part of the first surface (70) of each electric contact point, and the second insulation layer (68) is stick onto and covers part of the second surface (72) of each electric contact point.

Description

Laminated electrical contact strip
Technical field
The present invention relates to a kind of electrical interconnection arrangement that between two electric components, uses.
Background technology
Interconnection device for example is generally used for removing, replacing and/or provide electrical connection during the detecting electric element between different electric components when needs, these electric components such as but to be not limited to be integrated circuit and printed circuit board (PCB).A lot of this electric components have and are arranged in " planar lattice array " contact (LGA), and this array is the contact pad array of bidimensional.A kind of being referred to as " plug-in unit " interconnection device (interposer) has the electric contact array between two relative arrays that place electric component, with the electrical connection between the electric contact that the phase pair array is provided.
Sometimes, because for example between the electric contact of the electric contact of relative electrical device array and/or plug-in unit and misalignment, be difficult between the electric contact of the electric contact of relative electrical device array and plug-in unit, set up reliably contact.And also being difficult to provides the shape that is easy to strengthen mechanical stability between plug-in unit and electric component for the electric contact of plug-in unit.Some known plug-in units adopt flexible member, this flexible member is compressed by the electric contact of relative electrical device array, thereby so that flexible member applies a mechanical force to electric contact, so that set up and keep electrically contacting reliably between the relative electrical device array.Misalignment to a certain degree can be arranged between the electric contact of the compression permission plug-in unit of flexible member and/or relative electrical device array.Yet the plug-in unit of the employing flexible member that at least some are known still perplexs by the misalignment between the electric contact of the electric contact of relative electrical device array and/or plug-in unit and/or less than the mechanical stability of needs.
Need a kind of electrical interconnection arrangement that better alignment and larger mechanical stability can be provided between relative electric component.
Summary of the invention
According to the present invention, a kind of electric contact piece comprises base portion, and this base portion has the first and second relative base surface.A plurality of the first flexible members stretch out from the first base surface, and a plurality of the second flexible member stretches out from the second base surface.Laminated electrical contact strip is kept by described base portion.Described laminated electrical contact strip comprises a plurality of electric contacts, and each electric contact comprises a pair of the first and second relative surfaces that extend between a pair of the first and second end portion relatively.The first and second stacked dielectric layers are on a plurality of electric contacts, so that the first and second insulating barriers a plurality of electric contacts of clamping betwixt.Described the first insulating barrier bonds to and covers the part of the first surface of each electric contact, and described the second insulating barrier bonds to and cover the part of the second surface of each electric contact.
Description of drawings
Fig. 1 is the perspective view of the exemplary embodiments of plug-in unit.
Fig. 2 is the enlarged perspective of the part of plug-in unit shown in Figure 1.
Fig. 3 is the viewgraph of cross-section of the part of the plug-in unit shown in Fig. 1 and 2, and it shows plug-in unit and is electrically connected a pair of electric component.
Fig. 4 is the perspective view of exemplary embodiments of the electric contact piece assembly of the plug-in unit shown in Fig. 1-3.
Fig. 5 is the perspective view of exemplary embodiments of a part of the base portion of electric contact piece assembly shown in Figure 4.
Fig. 6 is the perspective view of exemplary embodiments of the laminated electrical contact strip of electric contact piece assembly shown in Figure 4.
Fig. 7 is the perspective view of the part of laminated electrical contact strip shown in Figure 6.
Fig. 8 is the perspective view of the part of electric contact piece assembly shown in Figure 4.
Fig. 9 is another perspective view of the part of electric contact piece assembly shown in Figure 4.
Embodiment
Fig. 1 and 2 is the perspective view of the exemplary embodiments of plug-in unit 10.Fig. 3 is the viewgraph of cross-section of the part of plug-in unit 10, and it shows plug-in unit 10 and is electrically connected a pair of electric component 12 and 14.Electric component 12,14 each comprise respectively separately a plurality of electric contacts 20 and 22 array 16 and 18.The array 16 of electric component 12 is complementary with the pattern of the array 18 of electric component 14 substantially.Plug-in unit 10 comprises the array 24 of a plurality of electric contacts 26, is used for being electrically connected the array 16 and 18 of electric component 12 and 14.The array 24 of plug-in unit 10 is complementary respectively with the array 16 of electric component 12 and 14 and 18 pattern substantially.
Electric component 12 and 14 each can be the electric component of any adequate types, such as, but be not limited to, printed circuit board (PCB), integrated circuit, electrical module, and/or other electric device.Array 16 and 18 each can be any adequate types so that the electric contact array that can effectively be electrically connected between electric component 12 and 14, such as, but be not limited to, pin grid array (PGA), planar lattice array (LGA), and/or ball grid array (BGA).And array 16 and 18 can have any suitable so that structure of the electric contact that can effectively be electrically connected between electric component 12 and 14 to be arranged, and/or pattern.
Plug-in unit 10 comprises the substrate 28 with apparent surface 30 and 32 and a plurality of electric contact piece assemblies 34 that kept by substrate 28.Each electric contact piece assembly 34 comprises a plurality of electric contacts 26 that are held in delegation.Electric contact 26 is spaced apart each other in corresponding row so that in corresponding row electric contact 26 and contiguous electric contact 26 electrical isolation.In exemplary embodiments, electric contact piece assembly 34 is kept with side by side arrangement by substrate 28, so that electric contact piece assembly 34 forms the row of a plurality of contact points 26.Although figure 1 illustrates 20 electric contact piece assemblies 34, plug-in unit 10 can comprise the electric contact piece assembly 34 of any number.And although each the electric contact piece assembly 34 shown in Fig. 1 comprises 20 electric contacts 26, each electric contact piece assembly 34 can comprise the electric contact 26 of any number.The pattern of the graphical representation of exemplary array 24 of the electric contact 26 that is formed by exemplary electric contact piece assembly 34, with and all only be exemplary by the mode that substrate 28 keeps.Array 24 can have any suitable so that plug-in unit 10 can be electrically connected the pattern of electric component 12 and 14.
Substrate 28 can by any suitable can be so that substrate 28 has as described herein the material of function makes, such as, but be not limited to,
Figure G2009101267216D00031
PETG (PET), polyimides, polyester, epoxy, other has the material of low and uniform dielectric constant, and/or electric conducting material, such as, but be not limited to, metal material is such as, but be not limited to stainless steel.In certain embodiments, substrate 28 is made by the material that one or more have low-k and even dielectric constant fully.Alternative, substrate 28 is made by one or more electric conducting materials, such as, but be not limited to, stainless steel.As will be described below, in certain embodiments, thereby substrate 28 need not be electric insulation with each other electric insulation or isolation of electric contact 26.
Fig. 4 is the perspective view of the exemplary embodiments of electric contact piece assembly 34.Electric contact piece assembly 34 comprises base portion 36 and the laminated electrical contact strip 38 that is kept by base portion 36.Fig. 5 is the perspective view of the part of base portion 36.Referring now to attached Figure 4 and 5,, base portion 36 is included in the relative surface 40 and 42 of extending between a pair of relative end portion 44 and 46.The surface 40 and 42 each can be called as " first surface " and/or " second surface " here.Each end portion 44 and 46 comprises locking member 48, and it is incorporated in the opening 50 (Fig. 2) of substrate 28 (Fig. 1-3) so that electric contact piece assembly 34 is mounted to substrate 28.Locking member 48 can adopt any suitable structure, method, instrument and/or similar, remain in the corresponding opening 50, such as, but be not limited to, welding, solder, employing adhesive, employing interference engagement, employing interlock cooperate and/or are similar.
A plurality of flexible members 52 stretch out from surface 40, and a plurality of flexible member 54 stretches out from surface 42. Flexible member 52 and 54 each can be called as " the first flexible member " and/or " the second flexible member " here.Each flexible member 52 extends towards relative direction with a corresponding flexible member 54. Flexible member 52 and 54 is compressible, so that when electric component 12 and 14 links together by plug-in unit 10, flexible member 52 and 54 applies a mechanical force by electric contact 26 and divides the electric contact 20 and 22 that is clipped to array 16 and 18 (Fig. 3) (Fig. 3).In exemplary embodiments, each flexible member 52 and 54 adopts any structure, method, instrument and/or similar, such as, but be not limited to adopting adhesive, is respectively fixed on base surface 40 and 42.Alternative, each flexible member 52 and 54 parts are accommodated in the corresponding hole (not shown) in the substrate 28, and adopt any structure, method, instrument and/or similarly, such as, but be not limited to adopting adhesive, are fixed in this hole.In such alternate embodiments, corresponding flexible member 52 and 54 can link together in corresponding hole relatively, so that no matter relatively corresponding flexible member 52 and 54 is integrally formed or by being joined together to form, corresponding flexible member 52 and 54 all forms the overall structure that passes completely through the respective aperture extension relatively.
Flexible member 52 and 54 can by any suitable can be so that flexible member 52 and 54 has as described herein the material of function makes, such as, but be not limited to, silicon rubber, silicon fluoride rubber, polyepoxide, polyimides, polybutadiene, neoprene (diene) rubber, ethylene propylene diene rubber (EPDM), thermoplastic elastomer, and/or polystyrene. Flexible member 52 and 54 can have any suitable can be so that flexible member 52 and 54 has the as described herein shape of function, such as, but be not limited to, taper, truncated cone shape (conical butt), pyramid, frusta-pyramidal, prismatic, and/or hemisphere.In exemplary embodiments, elasticity circular 52 and 54 comprises conical butt.Some or all flexible members 52 are selectable to link together by corresponding elastic component 56.Similarly, some or all flexible members 54 are selectable links together by corresponding elastic component 56.When electric component 12 and 14 linked together by plug-in unit 10, elastic component 56 helped to prevent flexible member 52 and 54 lateral tilts.
Base portion 36 comprises a pair of relative sidepiece 58 and 60 that extends between surface 40 and 42.Sidepiece 58 comprises one or more therefrom outward extending extensions 62.As will be described below, each is accommodated in extension 62 in the corresponding opening 64 (Fig. 6,8 and 9) so that laminated electrical contact strip 38 is mounted to base portion 36.Sidepiece 58 can comprise that the extension 62 of any number is used for cooperating with the opening 64 of any number.
Base portion 36 can by any suitable can be so that base portion 36 has as described herein the material of function makes, such as, but be not limited to,
Figure G2009101267216D00041
PETG (PET), polyimides, polyester, epoxy, other has the material of low and uniform dielectric constant, and/or electric conducting material, such as, but be not limited to, metal material is such as, but be not limited to stainless steel.In certain embodiments, base portion 36 is made by one or more materials with low and uniform dielectric constant fully.Alternative, base portion 36 is made by one or more electric conducting materials, such as, but be not limited to, stainless steel.As will be described below, in certain embodiments, base portion 36 need not be electric insulation with each other electric insulation or isolation of electric contact 26.
Fig. 6 and 7 is perspective views of the exemplary embodiments of laminated electrical contact strip 38.Laminated electrical contact strip 38 comprises the insulating barrier 66 and 68 of a plurality of electric contacts 26 and a pair of clamping electric contact 26.Insulating barrier to 66 and 68 each can be called as " the first insulating barrier " and/or " the second insulating barrier " here.Each electric contact 26 comprises a pair of relative surface 70 and 72 that extends between a pair of relative end portion 74 and 76.The surface 70 and 72 each can be called as " first surface " and/or " second surface " here. End portion 74 and 76 each can be called as " the first end portion " and/or " the second end portion " here.When assembling shown in Fig. 6 and 7, in exemplary embodiments, each electric contact 26 comprises roughly C shape.Electric contact 26 can have any suitable can be so that electric contact 26 has the as described herein shape of function.
Insulating barrier 66 and 68 is stacked on the electric contact 26, so that insulating barrier 66 and 68 is clamped in electric contact 26 therebetween.More specifically, insulating barrier 66 is bonded to and covers the part on the surface 70 of each electric contact 26, and insulating barrier 68 is bonded to and covers the part on the surface 72 of each electric contact 26. Insulating barrier 66 and 68 can use any suitable method, step, structure, instrument, and/or similar being stacked on the electric contact 26.In certain embodiments, stacking be included in insulating barrier 66 and 68 and each contact surface 70 and 72 between adhesive is provided, be beneficial to insulating barrier 66 and 68 is bonded to electric contact 26.
As described above, electric contact 26 becomes delegation by insulating barrier 66 with 68 clampings, so that electric contact 26 is spaced apart each other along the length direction of row.Between 26 pairs of some or all adjacent electric contacts, insulating barrier 66 and 68 can comprise opening 64.As below will more specifically describing, each takes in a corresponding extension 62 (Fig. 5,8 and 9) therein opening 64, stacking electric contact piece 38 is mounted to base portion 36 (Fig. 3-5,8 and 9). Insulating barrier 66 and 68 can comprise that the opening 64 of any number is used for cooperating with the extension 62 of any number.
Electric contact 26 can by any suitable can be so that electric contact 26 has as described herein the material of function makes, such as, but be not limited to, copper, aluminium, silver, nickel, palladium, platinum, rhodium, rhenium, tin, and/or gold.The base metal that is covered by conductive layer can be as base material to provide intensity and/or hardness.Such base metal can be covered by the shielded metal that is covered by the precious metal surface structure, is beneficial to the suitable matsurface distribution that good metal-metal contacts to guarantee chemical inertness with providing.
Insulating barrier 66 and 68 can by any suitable can be so that insulating barrier 66 and 68 has as described herein the material of function makes, such as, but be not limited to,
Figure G2009101267216D00061
PETG (PET), polyimides, polyester, epoxy, other has the material of low and/or uniform dielectric constant, and/or similarly.
Fig. 8 and 9 is perspective views of the part of electric contact piece assembly 34.Each extension 62 of base portion 36 is incorporated in one of them corresponding opening 64 of laminated electrical contact strip 38, so that laminated electrical contact strip 38 is mounted to base portion 36.Each can have any suitable size and/or shape opening 64 and extension 62, so that opening 64 and extension 62 can cooperate that laminated electrical contact strip 38 is mounted to base portion 36.In certain embodiments, when extension 62 was incorporated in the opening, extension 62 can move or floats with respect to opening 64, so that when contact chip 38 is mounted to base portion 36, base portion 36 can move or unsteady with respect to laminated electrical contact strip 38.Extension 62 can adopt any suitable structure, method, instrument to be maintained in the corresponding opening 64, such as, but be not limited to, adopt adhesive, adopt interference engagement, adopt interlock to cooperate, and/or similar approach.And, other suitable layout, structure, method, instrument and/or analog or method, can be additionally or alternately be used to opening 64 and extension 62, thereby laminated electrical contact strip 38 is mounted to base portion 36, such as, but be not limited to, use adhesive so that stacking contact chip 38 is mounted to base portion 36.
When base portion 36 and laminated electrical contact strip 38 are installed shown in Fig. 8 and 9, corresponding flexible member 52 engagements at the surface 72 of each electric contact 26 and end portion 74 places of electric contact 26.A corresponding flexible member 54 at same end portion 76 places with electric contact 26, the surface 72 of each electric contact 26 meshes. Insulating barrier 66 and 68 insulate each electric contact 26 and base portion 36, and the base portion 36 with vicinity when electric contact piece assembly 34 is kept by substrate 28 (Fig. 1-3) insulate, and itself insulate with substrate 28.Accordingly, substrate 28 and/or base portion 36 each can selectively be made by electric conducting material.
Here the embodiment that describes and explain provides a kind of plug-in unit, and it has less misalignment and/or higher mechanical stability with respect at least some known plug-in units.In addition, the embodiment that describes here and explain provides a kind of plug-in unit, and it does not need insulated substrate.

Claims (6)

1. an electric contact piece assembly (34) comprising:
Base portion (36) with relative first and second base surface (40,42);
A plurality of from outward extending the first flexible member of described the first base surface (52);
A plurality of from outward extending the second flexible member of described the second base surface (54); And
By the laminated electrical contact strip (38) that described base portion keeps, described laminated electrical contact strip comprises:
A plurality of electric contacts (26), each electric contact are included in a pair of relative first and second surfaces (70,72) of extending between a pair of the first and second end portion (74,76) relatively; The second surface of each in described a plurality of electric contact is in the first terminal part office and corresponding one of them first flexible member engagement, and each the second surface in described a plurality of electric contact is in the second terminal part office and corresponding one of them second flexible member engagement; And
The first and second insulating barriers (66,68), it is stacked on described a plurality of electric contact, so that described the first and second insulating barriers keep described a plurality of electric contact betwixt, described the first insulating barrier (66) is bonded to and covers the part of the first surface (70) of each described electric contact, and described the second insulating barrier (68) is bonded to and covers the part of the second surface (72) of each described electric contact.
2. according to claim 1 electric contact piece assembly, the described a plurality of electric contacts of wherein said the first and second insulating barrier clampings become delegation, so that a plurality of electric contacts are spaced apart each other in this row.
3. according to claim 2 electric contact piece assembly, wherein said the first and second insulating barriers comprise opening (64), and described base portion comprises the extension (62) that is accommodated in the described opening.
4. according to claim 1 electric contact piece assembly, wherein each described electric contact is c-shaped.
5. according to claim 1 electric contact piece assembly, wherein each described first flexible member and corresponding one of them second flexible member is whole forms.
6. according to claim 1 electric contact piece assembly, wherein said the first flexible member is spaced apart each other along described base portion, and a plurality of described the first flexible members link together by elastic component (56).
CN2009101267216A 2008-01-10 2009-01-12 Laminated electrical contact strip Expired - Fee Related CN101494330B (en)

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US2032908P 2008-01-10 2008-01-10
US61/020,329 2008-01-10
US12/013,182 2008-01-11
US12/013,182 US7568917B1 (en) 2008-01-10 2008-01-11 Laminated electrical contact strip

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US7568917B1 (en) 2009-08-04
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